Well we should use a much longer tether next time. That would help
with the effects you describe but also with other effects too.
Also did any one else notice how clearly we were in two different
winds during the flight. If you look at the kml file you can see that
at lower altitudes we went mostly south but at upper mostly west. For
people wanting to steer the balloon it seems that changing altitude
might be a easy way to do it.
On Mon, Feb 8, 2010 at 1:20 PM, Michael O <m at dgmo.org> wrote:
>> Some discussion at lunch reminded me to mention my pet theory for why the
> payload was bouncing around to much.
> I'd originally assume it was wind shear layers, but the video shows it was
> moving around fairly violently for pretty much all the ascent.
>> So my new theory is that having a 7ft+ balloon rising at a pretty decent
> pace leaving a bunch of turbulent air beneath it which the payload is being
> dragged through.
>> This makes adding fins or suchlike to the payload a non-starter I think.
> It'll just make it even more affected by the turbulence.
> So now I'm back to having no idea how to usefully stablize the payload.
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